ADT shocking

Their technical department is a waste of time. Our alarm stopped working. The earliest a technician could come around is a week latter. He charged us a callout fee and for the replacement of a transformer. When i get home from work i find the alarm still not working and when i phoned ADT. They escalated the problem by promising to send a technician in a weeks time. So two weeks with no alarm. I tried to speak to management and surprise surprise they are unavailable.